Vehicular traction wheel

Abstract

A traction device including a stationary plate mounted to a housing of an associated drive wheel of a vehicle, with a rotary member mounted rotatably relative to the stationary plate, with spike members mounted relative to the rotary portion extensible upon actuation of an arcuate actuator plate extensible to effect contact, with contact head portions of each spike to effect radial projection of each spike. A medially positioned guide plate includes right and left cam surfaces to effect positioning of each contact head of each spike relative to the actuator plate.

What is claimed as being new and desired to be protected by Letters Patent of the United States is as follows: 
     
       1. A vehicular traction wheel comprising, in combination, a cylindrical body, the cylindrical body including a stationary plate member and a relatively rotatably annular side wall, and the annular side wall including an annular array of equally spaced spike bodies, each spike body including an extensible and retractable spike member directed and positioned reciprocatably within each spike body, a rear terminal end of each spike member includes an arcuate contact head orthogonally and coaxially mounted to the rear terminal end of each spike member, and   an arcuate actuator plate reciprocatably mounted relative to the stationary plate to effect extension of the spike members when each spike member and contact head is directed by the arcuate actuator plate means when the arcuate actuator plate means is in an extended orientation, and   wherein the arcuate actuator plate includes a piston, the piston mounted to a rear surface of the arcuate actuator plate, and the piston reciprocatably mounted relative to an actuator member, the actuator member fixedly mounted to the stationary plate, and hydraulic means to selectively effect reciprocation of the piston relative to the actuator member, and   including a plurality of return springs, a forward end of each return spring mounted to the rear surface of the actuator plate, and a rear terminal end of each spring fixedly mounted to the stationary plate, and   wherein the stationary plate includes a diametrically aligned medial guide plate, the medial guide plate including a right and left cam plate end member mounted to each respective right and left terminal end of the guide plate, and each respective right and left cam member positioned adjacent a right and left rear terminal end of the actuator plate to effect guidance of each contact head relative to the actuator plate.